U.S. patent application number 10/543599 was filed with the patent office on 2006-09-07 for door locking system.
Invention is credited to Ben-Zion Avni.
Application Number | 20060196238 10/543599 |
Document ID | / |
Family ID | 29798488 |
Filed Date | 2006-09-07 |
United States Patent
Application |
20060196238 |
Kind Code |
A1 |
Avni; Ben-Zion |
September 7, 2006 |
Door locking system
Abstract
A locking system for building door includes a lock latch engaged
with a door handle through an engagement mechanism comprising
inner, intermediate and outer base members coaxially rotatable
relative to each other. The inner member is connected with the
handle. The intermediate member is connected with the latch and
provided with a radially movable engagement member. In the door
locking state, the engagement member enters a notch in the inner
member and contacts with an underspringed pusher, which is movably
located in the outer base member allowing expelling the engagement
member from the notch and free rotating the inner member. In the
door unlocking state, a blocking bar controlled by user prevents
the engagement member from expelling out of the notch, thereby
engaging the inner and intermediate members and providing their
joint rotation by handle.
Inventors: |
Avni; Ben-Zion; (Kfar Saba,
IL) |
Correspondence
Address: |
NATH & ASSOCIATES
112 South West Street
Alexandria
VA
22314
US
|
Family ID: |
29798488 |
Appl. No.: |
10/543599 |
Filed: |
February 1, 2004 |
PCT Filed: |
February 1, 2004 |
PCT NO: |
PCT/IL04/00095 |
371 Date: |
July 27, 2005 |
Current U.S.
Class: |
70/218 |
Current CPC
Class: |
E05B 47/0692 20130101;
Y10T 70/5805 20150401; E05B 47/0002 20130101 |
Class at
Publication: |
070/218 |
International
Class: |
E05B 13/00 20060101
E05B013/00 |
Foreign Application Data
Date |
Code |
Application Number |
Jan 30, 2003 |
IL |
154193 |
Claims
1. A door locking system, including: One) a door handle; Two) a
lock latch for locking the door, which is disengaged with said door
handle in the door locked state; Three) a controlled engagement
mechanism designed for engaging said door handle and lock latch in
order to unlock the door by said door handle, said controlled
engagement mechanism comprising: An inner member and an
intermediate member, which are coaxially rotatable, as well as an
immovable outer base member, therewith said inner member is
connected with said door handle and slidably housed inside said
intermediate member with the possibility its rotation relative to
said intermediate member, and said intermediate member is connected
with said lock latch and slidably housed inside said outer base
member with the possibility of its rotation relative to said outer
base member; An engagement member movably housed in a radial
through opening in said intermediate member and, in the door locked
state, said engagement member enters a notch of said inner member
by its one side and contacts with a pusher by its opposite side,
therewith, the dimension of said engagement member measured in the
axial direction of said radial through opening is substantially
equal to the sum of the wall thickness of said intermediate member
and the depth of said notch; Said pusher movably located in said
outer base member and forced by a spring against said engagement
member in the door locked state, not preventing said engagement
member from expelling from said notch upon rotating said inner
member; a blocking means for blocking said pusher in the blocking
position, preventing said engagement member from expelling from
said notch and thereby engaging said inner and intermediate
members, that allows the rotation of said intermediate member by
means of said door handle and leads to displacing said lock latch
and unlocking the door; said blocking means including at least one
blocking bar, which is adapted to entering into the engagement with
said pusher in its said blocking position, and a controlling means
for the control of said blocking bar by user.
2. The door locking system of claim 1, wherein said engagement
member is made as a ball.
3. The door locking system of claim 1, wherein said engagement
member is made as a short pin with rounded ends.
4. The door locking system of claim 1, wherein said controlling
means is a mechanical drive of said locking bar controlled by user
by means of the door key.
5. The door locking system of claim 1, wherein said controlling
means is an electrical drive of said blocking bar.
6. The door locking system of claim 5, wherein said controlling
means includes an electrical switch for the control of said
electrical drive by user.
7. The door locking system of claim 5, wherein said controlling
means includes a digital device for the control of said electrical
drive by user by dialing a digital code.
8. The door locking system of claim 5, wherein said electrical
drive of blocking bar is made as a solenoid.
9. The door locking system of claim 4, wherein there are two
blocking bars, one of which has said mechanical drive and the other
has an electrical drive associated with the locking bar and one of
these drives is designed for preferable use, while the other drive
serves as an alternate safety means.
10. The door locking system of claim 7, wherein said controlling
means with electrical drive and digital device is used as a main
controlling means, while said controlling means with a mechanical
drive controlled by the user by means of a door key serves as an
alternate means for using if the malfunctions of said electrical
drive occur.
11. The door locking system of claim 1, wherein said blocking means
includes at least one lateral recess on said pusher, and said at
least one blocking bar is disposed laterally relative to said
pusher and adapted to entering said pusher lateral recess to fix
said pusher in its blocking position for unlocking the door.
12. The door locking system of claim 9, wherein said blocking means
includes two said pusher lateral recesses disposed oppositely and
said two blocking bars are disposed laterally relative to said
pusher and oppositely relative to each other strictly against said
pusher lateral recesses.
13. A door locking system, including: One) a door handle; Two) a
lock latch for locking the door, which is disengaged with said door
handle in the door locked state; Three) a controlled engagement
mechanism for engaging said door handle and lock latch in order to
unlocking the door by said door handle, said engagement mechanism
comprising: An inner member, an intermediate member and an outer
base member, which are coaxially rotatable relative to each other;
Said inner member connected with said door handle, having a notch
on its lateral surface, slidably housed inside said intermediate
member and rotated relative to it; Said intermediate member
connected with said lock latch, slidably hosed between said inner
member and outer base member, rotated relative to said outer base
member, and having a radial through opening in its wall; Said outer
base member immovable relative to the door and having a guide
channel, which is disposed radially relative to the center of the
rotation of said inner and intermediate members and, in the door
locked state, located coaxially with said radial through opening;
An engagement member movably hosed in said radial through opening
with the possibility of partial location in said notch or said
guide channel, therewith the dimension of said engagement member
measured in axial direction of said radial through opening is
substantially equal to the sum of the wall thickness of said
intermediate member and the depth of said notch; A pusher movably
located in said guide channel and forced by a spring against said
engagement member in the door locked state without preventing said
engagement member from expelling from said notch upon rotating said
inner member; A dual blocking means for blocking said pusher in the
blocking position to prevent said engagement member from expelling
from said notch and to engage said inner and intermediate members,
thereby allowing the rotation of said intermediate member by means
of the door handle for displacing said lock latch and unlocking the
door; Said dual blocking means including two locking bars for
entering lateral recesses on said pusher, and one of said blocking
bars, designed for preferable use, is provided with an electrical
drive controlled by user by means of its turning on, and the other
of said blocking bar, designed for alternate use, is provided with
a mechanical drive controlled by user by means of the door key;
Said pusher and blocking bars disposed in the door plane.
14. The door locking system of claim 13, wherein said turning on of
electrical drive is executed through an electronic digital device
by dialing a digital code.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to the lock systems of the
doors, specifically, designed for the external safety doors of the
apartments or buildings.
[0003] 2. Description of the Prior Art
[0004] The known door locking systems include the mechanism for the
control of engaging the door handle and the door lock latch In the
door locked state, the door handle and the lock latch are
disengaged and, therefore, the door can not be unlocked with the
door handle. To unlock the door, user engages the door handle and
the lock latch by means of an engagement mechanism and unlocks the
door by the door handle. As a rule, the engagement mechanism is
actuated by the detail movement directed perpendicular to the door
plane and designed to pull the members of the door handle and the
lock latch together or to introduce an engagement member between
the members of the door handle and the lock latch. The disadvantage
of this engagement mechanism is its complexity caused with the
necessity of transposing the relatively large details or assembles
and returning them to their original positions. Introducing the
mentioned members into engagement demands applying of substantial
force and is connected with the detail wear and the possibility of
member jamming. As a result, the durability and reliability of the
door lock system is decreased. Besides, providing the detail drive
in the direction perpendicular to the door plane is awkward as the
door size in this direction is limited.
[0005] Patent EP1152106 can be considered as an example of the
existing engagement mechanisms. The mechanism includes a grip
collar with a lower necked section rotatably mounted in the door
plate and a bush rotatably mounted on the mentioned necked section
and having a locking ball assembly. There is also a poligonal
actuating bar for introducing into the central bore in the necked
section in the direction perpendicular to the door plane in order
to displace four balls to the notches in the necked section and
thereby to engage the necked section and the bush. The above noted
disadvantages, such as the design complexity, decreased reliability
and durability and the other fully relate to this patent because it
comprises the polygonal actuating bar to be transposed in the
direction perpendicular to the door plane. Furthermore, central
disposition of the actuating bar in this design creates the
problems for the central disposition of the rotatable door handle,
as well as for the control of the door locking system by two means,
for instance by a constantly used electrical drive and an alternate
mechanical drive.
SUMMARY OF THE INVENTION
[0006] The objective of the present invention is the simplification
of the engagement mechanism of the door lock system and the
reduction of its cost.
[0007] Another objective is heightening the durability and the
reliability of the door locking system.
[0008] Another objective is providing the suitability of the door
locking system for the control by two, main and alternate
means.
[0009] The above noted objectives are accomplished with a door
locking system including a door handle, a lock latch and a
controlled engagement mechanism. The latter comprises coaxially
rotatable inner and intermediate members, as well as an immovable
outer base member. The inner member is connected with the door
handle and slidably housed inside the intermediate member with the
possibility of its rotation relative to the intermediate member.
The intermediate member is connected with the lock latch and
slidably housed inside the outer member with the possibility of its
rotation relative to the outer base member. The engagement
mechanism also comprises an engagement member movably housed in a
radial through opening in the intermediate member and, in the door
locked state, entering a notch of the inner member by its one side
and constantly contacting with a pusher by its opposite side. The
dimension of the engagement member measured in the axial direction
of the radial through opening of the intermediate member is
substantially equal to the sum of the wall thickness of the
intermediate member and the depth of the notch of the inner member.
This allows the inner and intermediate members, engaged with the
engagement member, the free rotation inside the outer base member.
The pusher is movably located in the outer base member, constantly
forced by a spring against the engagement member in the door locked
state, and provided with a blocking means for fixing the pusher in
its blocking position. In this position, the pusher prevents the
engagement member from the displacement beyond the limits of the
intermediate and inner members thereby engaging these members and
allowing the rotation of the intermediate member by the door
handle. This rotation leads to displacing the lock latch and
unlocking the door. The blocking means includes two lateral
recesses on the pusher disposed oppositely relative to each other
and two blocking bars disposed strictly against the pusher lateral
recesses. One of the blocking bars is driven by a solenoid and
controlled by means of a digital device and the other blocking bar
has mechanical drive controlled by a door key. To unlock the door,
user dials a digital code on the digital device and solenoid
introduces the blocking bar into the pusher lateral recess thereby
fixing the pusher in its blocking position. This allows unlocking
the door by rotating the door handle. The blocking bar with
mechanical drive serves as an alternate means for use if the
malfunctions of the electrical drive occur.
[0010] As distinct from the prior art, the proposed engagement
mechanism has three, inner, intermediate and outer base members
rotatable relative to each other and only one engagement member
disposed in the radial through opening of the intermediate member
and partially displaced into the inner or outer base members. This
enables the arrangement of the pusher and the blocking bars
laterally relative to the inner and intermediate members. As a
result, practically all the engagement mechanism is disposed in the
door plane that simplifies the installation of the door handle and
facilitates the use of the dual control of the door locking system.
The use of only one engagement member also substantially simplifies
the design. The engagement member practically is immovable relative
to the intermediate and inner members in locked, unlocked and
transitional door states, reducing to a minimum the friction, wear
and jamming in the engagement mechanism. Besides, there are no any
transpositions of the engagement member or the inner and
intermediate members directed to the engagement of the door handle
and the lock latch. Instead, there is only insignificant
displacement of one blocking bar in the door plane that is
substantially less than the needed transpositions in the prior art.
As a result, the design of the engagement mechanism is sufficiently
simple, reliable, durable and suitable for applying the double
control means.
BRIEF DESCRIPTION OF 1BE DRAWINGS
[0011] FIG. 1 shows the engagement mechanism of the door locking
system in the door locked state.
[0012] FIG. 2 shows the engagement mechanism in the door locked
state upon rotated the door handle.
[0013] FIG. 3 shows the engagement mechanism in the door unlocked
state.
DETAILED DESCRIPTION OF THE INVENTION
[0014] Referring first to FIG. 1, a door locking system will be
described. FIG. 1 shows engagement mechanism 10 of the door locking
system in the door locked state. The door locking system includes
door handle 11 (shown partly), a lock latch (not shown) connected
with arm 12, and engagement mechanism 10. The latter comprises
inner member 13 and intermediate member 14, which are coaxially
rotatable, as well as immovable outer base member 15. Inner member
13 is connected with door handle 11 and slidably housed inside
intermediate member 14 with the possibility of its rotation
relative to intermediate member 14. Intermediate member 14 is
connected with the lock latch through arm 12 and slidably housed
inside outer base member 15 with the possibility its rotation
relative to outer base member 15. Intermediate member 14 has radial
through opening 16, wherein engagement member 17 is movable housed.
At the same time, engagement member 17 enters notch 18 of inner
member 13 by its lower side and contacts with pusher 19 by its
upper side. The dimension of engagement member 17 measured in the
axial direction of radial through opening 16 is substantially equal
to the sum of the wall thickness of intermediate member 14 and the
depth of notch 18. Engagement member 17 can be made as a ball or as
a short pin with rounded ends. Pusher 19 is movably located in
guide 20 of outer base member 15, forced by spring 21 against
engagement member 17 and provided with the blocking means. The
latter includes two lateral recesses 22, 23 oppositely disposed on
pusher 19 and two blocking bars 24, 25 disposed strictly against
recesses 22, 23, respectively. Blocking bar 24 is driven by
solenoid (not shown), which is controlled by user through a digital
electronic device (not shown) by means of dialing a digital code,
or, in version embodiment, by electrical switch. Blocking bar 25
has a mechanical drive (not shown) controlled by user by means of
the door key. Preferably, blocking bar 24 with its electrical drive
serves as a main blocking means, while blocking bar 25 with its
mechanical drive is used as an alternate blocking means if the
malfunctions of the electrical drive occur.
[0015] The rotation of door handle 11 and connected with it inner
member 13 without blocking pusher 19 (see FIG. 2) leads to that
engagement member 17 displaces out of notch 18 overcoming the
resistance of spring 21. As a result, inner member 13 and
intermediate member 14 are not engaged, intermediate member 14 and
its arm 12 do not rotate and the door can not be unlocked. To
unlock the door, user dials a digital code on the digital device,
which turns on the solenoid and the latter introduces blocking bar
24 into recess 22 of pusher 19 (see FIG. 3), thereby fixing pusher
19 in its blocking position. As a result, engagement member 17
cannot be expelled from notch 18 engaging inner member 13 and
intermediate member 14. This allows rotating intermediate member 14
and its arm 12 by door handle 11, displacing the lock latch and,
eventually unlocking the door.
[0016] Thus, the design of engagement mechanism 10 includes three,
inner, intermediate and outer base members 13, 14, 15 rotatable
relative to each other, as well as only one engagement member 17
disposed between inner member 13 and outer member 15. This allows
arranging pusher 19, blocking bars 24, 25 and practically
engagement mechanism 10 as a whole in the door plane, thereby
simplifying it and facilitating the application of the dual control
of the door locking system. The use of only one engagement member
17 also substantially simplifies the engagement mechanism design.
The member position, shown in FIG. 2, is used mainly for the
explanation of the principle of the engagement mechanism operation.
However in practice, this position is used very seldom, while the
door locked position (FIG. 1) and unlocked door position as well as
the transitional position (FIG. 3) are main used positions, wherein
engagement member 17 is immovable relative to inner member 13 and
intermediate member 14. This reduces to a minimum the friction,
wear and jamming in engagement mechanism 10. Furthermore, all the
detail movement directed to the engagement of the door handle and
the lock latch diminishes to only insignificant displacement of
locking bar 24. This also decreases the friction, wear and jamming.
As a result, there are heightening the reliability and durability
of the engagement mechanism and the door locking system as a
whole.
* * * * *